Pulp gbinding machine



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PULP GRINDING MACHINE. No. 361,207. I Patented Apr. 12, 1887,,

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. PULP GRINDING MACHINE. No. 361,207. Patented Apr. 12, 1887,

W ifiwesscs: Ivtvenfion N FEYEBS. Pholuljlhcgraphor. Washington, u,c.

UNITED STATES PATENT OFFICE.

OSCAR A. BYENS, OF APPLETON, VISCONSIN, ASSIGNOR TO THE VALLEY IRONWORKS, OF SAME PLACE.

PULP-GRINDING MACHINE.

SPECIFICATION forming part of Iletters Patent No. 361,207, dated April12, l87.

' Application filed July 3, 1886. Serial No. 107,072.

To all whom it may concern.-

Be it known that I, OSCAR A. BYRNS, of Appleton, in the county ofOutagamie and State of Wisconsin, have invented certain new and usefulImprovements in Pulp-Grinding Machines; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it pertains to makeand use the same, reference being had to the accompanying drawings,andto theletters of reference marked thereon, which form a part of thisspecification.

My invention consists, essentially, of a rotary grinding stone orcylinder, one or more feeding chutes or cells radiating from the face ofsaid stone or cylinder, and independentlyoperated plungers or followersarranged to force the wood against said stone or cylinder at a ratecontrolled by the movement of said stone or cylinder, and of certaindetails hereinafter described. Its objects are, first, simplicity ofconstruction and operation; second,

' economy of time and labor, and, third,strength and durability.

In the accompanying drawings, like letters designate the same parts inthe several figures.

Figure 1 is a longitudinal vertical section of my improved machine,(except the grinding cylinder or stone,) taken on the line a: 0:, Fig.3. Fig. 2 is a side elevation of the same. Fig. 3 is a plan view. Fig. 4is a sectional detail, on an enlarged scale, of a part of thefeeding-gearing and the device for lubricating the same; and Fig. 5 is atransverse section on the lineg y, Figs. 1 and 3, of one of thefeeding-cells.

A A represent that part of the cast-iron frame-work of the machine whichforms the sides'of the feeding-cells. The tops and bottoms of said cellsare formedby cast-iron plates 6 12, secured to the side plates orframes, A A, by means of bolts 0 c passing through slots formed in saidside plates, A A, which permit of the longitudinal adjustment of saidtop and bottom plates, 1) b, to insure close joints between them and theface of the stone E.

E is the grinding-stone, mounted in the (No model.)

usual manner betweenheavy flanges e 0 upon shaft 6, which is providedwith the cone-pulley F.

G O are followers adapted to and arranged to travel longitudinallythrough the cells B B. They are formed or provided withrackbars D D,which project at the outer ends of said cells, and are engaged bypinions h h upon shafts g g.

M is a cone-pulley, keyed to the outer end of the short shaft or, whichhas a bearing in bracket-box I, secured to the frame of the machine, andis arranged tobe driven from the pulley F on the stone-shaft e. Upon theother end of the shaft m is secured the screwgear K, whiclrworks atopposite sides with similar gears, is, upon the lower ends of theupright shafts 0 0. Said shafts 0 o bear at their upper ends in boxespp, formed upon or secured to the ends of levers P P, which arefulcrumed to and extend transversely across the machine. Thelonger shaft0 bears at its lower end below its gear k in a step, I, and the shortershaft 0 bears just above its gear is in a box, 0", pivoted to the frameof the machine. A collar, 0 bears upon the upper-edge of the box 0 andsustains the shaft 0 in place. Upon the upper ends of shafts 0 0,adjacent to boxes 1) p, are mounted the large worms 0 O, which arearranged to be thrown by the leversP P into and out of engagement withthe worm-gears G G, keyed to the adjacent ends of shafts g To theopposite ends of said shafts g g are secured hand-wheels H H upon thesame side of the machine with the projecting handles of levers P P andthe openings a a into the cells B B.

The rack-bars D D bear at their backs opposite pinions 7L it againstfriction-rollers n n, journaled in cross-braces N N, bolted to the sideplates, A A. By means of a lever, f, and clutch B, applied to shaft mand cone-pulley M, the feeding mechanism may be thrown out of gear andinstantly stopped. gears K and k 70 are placed in an iron box or trough,L, in which they may be immersed in oil and, together with the step Z,constantly and thoroughly lubricated, thus preventing unnecessary wear.The openings at a into the cells B B are closed by doors a a, hinged tothe,

The screwadjaeent-sidcplates, A. The stoneE is inclosed at the sides byiron plates A A, bolted to the side plates, A A.

To prevent the racks D D from being driven out of engagement with thepinions [L h when the followers C approach stone E, I secure a spring,S, to the cross-braces N N, as seen in Fig. 1, so that its ends willengage with stops d d at the ends of rack-bars D 1) when they reach thelimit of their advance movement. The levers P I are supported andretained in place adjacent to their handles by the guide 9' and catch1*, secured to the frame of the machine.

The bottom plates, 6 b, are formed with longitudinal depressions orgrooves, as shown in Fig. 5, to guide the followers 0 O, which areprovided on their lower faces with corresponding projections.

My improved machine operates as follows: The stone E being first putin-motion the cells B B are supplied with wood through openings a a, thefollowers 0 0 having been previously withdrawn by means of hand-wheels HH. The followers 0 O are then brought snugly up against the wood in thecells B by means of said hand-wheels H II. The worms 0 O are moved intoengagement with the gears G G by means of levers 1 P, which are lockedin place by the guide 0' and catch 1-. \Vhenever the wood in either cellis consumed its plunger 0 is disconnected from the feeding mechanism,throwing the proper worm, O or O, by means of one of the levers P P, outof engagement with its gear G without interfering with the advancemovement or operation of the follower in the other cell. The top andbottom plates, 1) b, of the cells B B are constantly kept close to thegrinding-face of stone E by means of their adjusting-bolts c 0, so as toprevent the thin piece of wood to which the blocks are ultimatelyreduced from being carried through between stone E and said plates intothe pulp.

The machine is fed and operated by the attendant from one position,thereby saving time and enabling one person to run a greater nu mber ofmachines than he otherwise could.

As the working parts of my improved machine are few in number, madelarge and strong, and located in plain view of the operator, the machinewears longer, runs easier, is less liable to break, and is more easilyoperated and repaired than when a greater number of lighter parts areemployed. The feeding mechanism being driven from the shaft of thegrinding-stone, the advance movement of the followers 0 C varies inexact accordance with the speed of said stone E, thus producing auniform grade of pulp,and utilizing the power to the best advantage.

The details of my machine may be variously changed without departurefrom the spirit of the invention. In place of the two feeding-cellsshown in the drawings, a single cell or greater number may be employedin the same manner.

I claim" 1. In a pulpgrinding machine, the combination, with a rotarygrinder, of a follower provided with a rack, a cell in which saidfollower works and the material to be ground is placed, and adriving-pinion working with said rack and driven from the shaft of saidrotary grinder, substantially as and for the purposes set forth.

2. In a pulp-grinding machine, the eombination, with a rotary grinder,of a follower provided with a rack, a cell in which said follower isarranged to work and the material to be ground is placed, a shaftprovided with a pinion working with said rack and with a hand-wheel forwithdrawing said follower from said grinder, a shaft provided with aworm working with a gear on said pinionshaft and driven from the shaftof said rotary grinder, and means for disconnecting said pinion from thedriving mechanism, substantially as and for the purposes set forth.

3. In a pulp-grinding machine, the combination, with the stone E, of afeeding-cell, B, follower 0, provided with rack D, shaft 9, carryingpinion h, working with said rack, and gear G and shaft 0, carrying worm0, working with gear G, and arranged to be moved into and out ofengagement with said 9 gear G, substantially as and for the purposes setforth.

4. In a pulp-grinding machine, the combination, with the follower C, ofrack D, pinion h, and spring S, substantially as and for the purposesset forth.

5. In a pulp-grinding machine, the combination of the stone E,feeding-cell B, follower G, rack D, pinion h, and friction-roller n,substantially as and for the purposes set forth.

6. In a pulp-grinding machine, the combination, with the stone E, of thefollower O, rack D, shaft 9, carrying pinion h, and gear G, shaft 0,carrying worm O, and gear is, shaft or, carrying gear K and cone-pulleyM, pulley F, and feeding-cell B, substantially as and for the purposesset forth.

7. In a pulp-grinding machine, the combination, with the gears K and k7r,of the oil-box L, substantially as and for the purposes set forth.

8. In a pulp-grinding machine, the combination, with the follower C, ofthe rack D, shaft 9, carrying pinion h, and gear G, shaft 0, providedwith the worm O, which works with gear G, and lever I, provided with boxin which said shaft 0 bears, substantially as and for the purposes setforth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

OSCAR A. BYRNS.

Vitnesses:

LEOPOLD HAMMEL, S. BAIRD.

